Ray Koopman wrote:
> 5.2 has a similar bug: with {S,R} it appears to get the initial point
> correct, but otherwise follows the same solution path as 5.1.
No, it's not the same solution path as 5.1: some of the {S,R} pairs are
the same, but the others have either 1.0 or 1.5 subtracted from S and
added to R.